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What happens to the total mechanical energy in an ideal system?

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Important Questions on Work, Energy and Power

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Science>Physics>Work, Energy and Power>Different Forms of Energy and Transformation of Energy
In a coal-fired power plant, which energy transformation occurs first?
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Science>Physics>Work, Energy and Power>Different Forms of Energy and Transformation of Energy
What is the energy transformation that takes place in a solar cell?
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Science>Physics>Work, Energy and Power>Different Forms of Energy and Transformation of Energy
Work is a physical quantity.
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Science>Physics>Work, Energy and Power>Different Forms of Energy and Transformation of Energy
Which form of energy is stored in a stretched rubber band?
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Science>Physics>Work, Energy and Power>Different Forms of Energy and Transformation of Energy
How is electricity produced from solar energy?
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Science>Physics>Work, Energy and Power>Different Forms of Energy and Transformation of Energy
Energy can easily be created.
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Science>Physics>Work, Energy and Power>Different Forms of Energy and Transformation of Energy
What type of energy is stored in food?
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Science>Physics>Work, Energy and Power>Different Forms of Energy and Transformation of Energy

Explain the difference.

Thermal electricity generation and solar thermal electricity generation.

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Science>Physics>Work, Energy and Power>Different Forms of Energy and Transformation of Energy

Which is the best method for the generation of electric power by using solar cell?

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Science>Physics>Work, Energy and Power>Different Forms of Energy and Transformation of Energy
Which of the following energy transformation takes place in a photo cell?
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Science>Physics>Work, Energy and Power>Different Forms of Energy and Transformation of Energy

Which two methods are commonly used to convert solar energy into electrical energy?

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Science>Physics>Work, Energy and Power>Different Forms of Energy and Transformation of Energy

What is generated in a solar cell, when sunlight strikes the semiconductor material?

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Science>Physics>Work, Energy and Power>Different Forms of Energy and Transformation of Energy

The _____ energy stored in the wood gets converted into heat and light energies when it is burnt.

HARD
Science>Physics>Work, Energy and Power>Different Forms of Energy and Transformation of Energy
What type of energy transformation occurs in a windmill?
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Science>Physics>Work, Energy and Power>Different Forms of Energy and Transformation of Energy
If the displacement of an object is zero, work done on it is also zero.
EASY
Science>Physics>Work, Energy and Power>Different Forms of Energy and Transformation of Energy
Electrical energy can be considered as a type of kinetic energy.
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Science>Physics>Work, Energy and Power>Different Forms of Energy and Transformation of Energy

What are the advantages and limitations of solar energy?

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Science>Physics>Work, Energy and Power>Different Forms of Energy and Transformation of Energy
During photosynthesis, chemical energy is converted into light energy.
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Science>Physics>Work, Energy and Power>Different Forms of Energy and Transformation of Energy
Which type of energy is produced by the movement of electric charges?
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Science>Physics>Work, Energy and Power>Different Forms of Energy and Transformation of Energy

Which one of the following principles is used for directly generating an electric current using sunlight?